package ru.arriah.servicedesk.web.client.action;

import java.io.IOException;
import java.util.Collection;

import javax.naming.NamingException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import ru.arriah.common.web.action.ActionMapping;
import ru.arriah.common.web.action.DumbAction;
import ru.arriah.servicedesk.bean.RequestHistoryBean;
import ru.arriah.servicedesk.ejb.RequestManagerLocalHome;
import ru.arriah.servicedesk.ejb.RequestManagerLocalObject;
import ru.arriah.servicedesk.help.Utils;
import ru.arriah.servicedesk.web.commonaction.exception.InternalException;

public class DisplayHistoryAction extends DumbAction {
   protected RequestManagerLocalHome requestManagerHome;

   public DisplayHistoryAction() throws NamingException {
      super();
      requestManagerHome =
         Utils.getRequestManagerHomeInterface();
   }

   public String execute(
      ActionMapping actionMapping,
      HttpServletRequest request,
      HttpServletResponse response
   ) throws IOException, ServletException {
      try {
        int requestId = idVal(request.getParameter("request_id"));
        
        RequestManagerLocalObject requestManager = 
          requestManagerHome.create();
        
        Collection<RequestHistoryBean> requestHistoryList = 
          requestManager.getRequestHistory(requestId);         

        requestManager.remove();
        request.setAttribute("requestHistoryList", requestHistoryList);
        return actionMapping.getSuccessTarget();
      } catch (Exception e) {
         handleException(e, "execute");
         throw new InternalException("ErrorMessage.internal");
      }
   }
}